Harry Corson Clarke
- Bats Unknown, Throws Unknown
- Debut August 28, 1889
- Final Game August 28, 1889
- Born January 13, 1861 in New York, NY USA
- Died March 3, 1923 in Los Angeles, CA USA
Harry Clarke was primarily an actor. He got his chance to play major league baseball when the Washington Nationals lost two players to injury in the first half of a doubleheader on August 28, 1889; they brought in Clarke (a semipro player on the side) out of the stands to join the depleted team. He managed to nail down two baserunners who attempted to take advantage of his lack of experience in right field by stretching singles into doubles, and also made a fine catch on a foul ball. He went 0 for 3 at the plate, however.
As an actor, he was part of a famous show business family and was a well-known stage actor of his time and toured overseas on a number of occasions.